74 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I39 Page

74 SMITHSONIAN MISCELLANEOUS COLLECTIONS

VOL. I39

75 Page the closely crowded costellae separated by narrow, shallow striae.

16, Interior of the pedicle valve of another specimen tilted to show

apical and dental plates,

X

^{2, hypotype U.S.N.M. 111004b. 17,}

Posterior of the preceding pedicle valve,

X

^{3, showing large, incom-}

plete foramen, largeteeth, and small disjunct deltidialplates. 18, 19, Respectively anterior and full views of the brachial valve interior showing cardinalia, myophragm, and muscle scars,

X

^{2, hypotype}

U.S.N.M. 111004b. 20, Posterior of the preceding specimen tilted to

show socket ridge, corrugated socket, and long, slender, curved, radulifercrura withthe strengthening ridge on their under or dorsal surface,

X

^{3- 21, Posterior view of}the cardinalia ofthe same speci-

men showing socket ridge, small outer hinge plates, and distally flattened crura,

X

^3-

Recent, Coal Harbor,

Unga

Island, Shumagins, Alaska.

Plate ₄

Aetheia,Fricleia, Grammctaria, Camarotoechia,and Hemithyris

A. Aetheia gualteri (Morris) 42

Fig. 1. Rubber impression of a pedicle valve interior prepared to

show the muscle scars and pallial marks,

X

^{2, hypotype U.S.N.M.}

369298a (see pi. 9, B).

Miocene (Duntroongreensand), Otago,

New

Zealand.

B. Frieleia halli Dall _S3

Figs. 2, 3. 2, Posterior of a brachial valve,

X

^{6, showing the hinge}

plates surrounding a plugof the median septum, and the inner hinge platesengulfingtheseptum,hypotype U.S.N.M. 111021a. 3, Posterior ofanotherbrachialvalve interior,

X

^6, with well-preservedcardinalia and elongate adductor scars, and showing inner hinge plates not yet coalesced, hypotype U.S.N.M. 111021b.

Recent, 559 fathoms, in ooze, 38.4 F., U. S. Fish Commission Sta- tion 2871, off the coast ofWashington.

C. Grammetaria bartschi (Dall) 58

Figs.4, 5. 4, Dorsalviewofayoungbut imperfect specimen,

X

^{6 above}

and

X

^{JO below, showing elaborate} auriculations on the deltidial plates, paratype U.S.N.M. 274134. 5,

Same

specimen with brachial valvetiltedto show cardinaliaanddental plates,

X

^{6, and alsoshow-}

ingseptum unitedwith hinge plates and longcurvedcrura.

Recent, at 161 fathoms, _57.4 F., on sand, U. S. Bureau of Fish- eriesStation _5735, off Jolo, Philippine Islands.

D. Camarotoechia species 10

Figs. 6-8. _6, 7,

Two

views of the posterior partofa silicified brachial valve,

X

^{4, showing crura and median hinge plate welding them to-}

gether, figured specimen U.S.N.M. 134812c 8, The same specimen tilted to show apical chamber (septalium?) and crural plates,

X4

(seep. 10).

Devonian (Norway Point formation), junctionFrench and Truckey roads,

SW1/4SW1/4

sec. 4, T. 31 N., R. 8 E., Alpena County, Michigan.

j6 SMITHSONIAN MISCELLANEOUS COLLECTIONS

VOL. I39 Page

E. Hemithyris psittacea (Gmelin) ₄₅

Figs. 9, 10. 9, Posterior of a large brachial valve showing cardinalia with the narrow outer hinge plates and slender radulifer crura with the transverse cardinal process atthe apex,

X

^{3, hypotype U.S.N.M.}

111013. 10,

Same

specimen,

X

^{3, tiltedto}the side to showthe slender radulifer crurawiththeir flattened distal extremityand strengthening ridge on dorsal side.

Recent, 13fathoms, Upernavik Harbor,east coast ofGreenland.

Figs. 11, 12. 11, Posteriorofanotherbrachial valve,

X

^{3>tilted to show}

the long, slender crura and slightdevelopment of outer hinge plates,

hypotype U.S.N.M. 549379. 12, Side view of the pedicle valve inte- riorbelongingto theprecedingand showingtheinnerface of the dental plate and tooth with its corrugations,

X

^2.

Recent, north endof Nunivak Island, Alaska.

Plate ₅

Eohcmithyris, Sphenarina, Cryptopora, and Tegulorhynchia

A. Eohetnithyris alexis Hertlein and Grant 30

Figs. 1-5. Respectively anterior, posterior, side, dorsal, and ventral views of a somewhat crushed paratype cracked at the beaks,

X

^i»

U.C.L.A. 7257.

Eocene (Domengine formation), from section line, 2,600 feet south ofthenortheastcornerofsec. 20, T. 28S.,R. 19E., M.D. B.andM., near headwaters of west branch of

Agua

Media Creek, McKittrick Quadrangle,Temblor Range, California.

B. Sphenarina sicula (Seguenza) 62

Figs. 6-15. 6-10, Respectively dorsal, posterior, ventral, side, and ante- rior views of a well-preserved complete specimen,

X

^{1, showing the}

strongly triangular outline, hypotype U.S.N.M. 549353a. 11, Dorsal view ofthe preceding showing the foramen and obscure radial lines,

X

^{2. 12, Posterior ofthesame specimen,}

X

^{4,showingalateconjunct}

deltidial plates. 13, 14,

Two

viewsof the interiorofanother specimen showing the cardinalia,

X

^{4> with their small outer hinge plates,}

dental plates and lack of a median ridge or septum in the brachial valve, hypotype U.S.N.M. 549353c. 15, Enlargement of the shell surface,

X

^{6, showing the delicate radial lines, hypotype U.S.N.M.}

549353b.

Pliocene, Milasso, Messina, Sicily.

C. Cryptopora gnomon (Jeffreys) 22

Fig. 16. Brachial valvetiltedto the side,

X

^{8, to showthehighmedian}

septum and the long maniculifer crura with the distal end handlike and withfingersextended, paratypeU.S.N.M.94367.

Recent, 780 fathoms, off Cuba.

D. Tegulorhynchia.

Tegulorhynchia squamosa (Hutton) 50

Figs. 17-24. 17-20, Respectivelyventral, dorsal,anterior,and sideviews of a complete specimen,

X

^{1, hypotype U.S.N.M. 89855a. 21-23,}

Respectively dorsal, anterior, and side views ofthe preceding speci-

Page men,

X

^{2, showing the} imbricating ornament. 24,

A

partially exfoli- ated pedicle valve showing the impression of the muscle scars,

X

^2,

hypotype U.S.N.M.89855b.

Miocene (Ototaran), Broken River, Trelissick Basin, Canterbury,

New

Zealand.

Tegulorhynchia doderlcini (Davidson) 51

Figs. 25-31. 25, Dorsal view of a complete but small specimen,

X

^2,

showing imbricate ornament, hypotype U.S.N.M. 549317b. 26, 27, Tilted andfull viewsof the interior of the pedicle valve showing the muscle field and dental plates,

X

^{2, hypotype U.S.N.M. 5493i7d.}

28, Beakand teeth ofthe pedicle valve,

X

^{4. showing nearlyconjunct}

deltidial plates, hypotype U.S.N.M. 5493i7f. 29-31, Respectively full

viewofthecardinalia, lateralview, andwithshell tiltedtoshowshort median ridge and hinge plates,

X

^{4, hypotype U.S.N.M. 549317c.}

The crural points have beenbroken off.

Mioceneor Pliocene (Shinzatotuff),high roadcutalong Highway

64, about 0.1 mile west of sharp bend in road about 0.3 mile east of Yashitomi, Okinawa, Ryukyu Islands.

Plate 6

Patagorhynchia andNotosaria

A. Patagorhynchia patagonica (von Ihering) 44

Figs. 1-4. Respectively dorsal, posterior, side, and anterior views of a complete but imperfect specimen showing imbricated ornamentation,

X

^i>hypotype Princeton University.

Eocene (Patagonian), Lake Pueyrredon, Argentina.

Figs. 5, 6. Interior of the pedicle and brachial valves,

X

^{1, showing}

concavedeltidial platesandthickened cardinalia. (Aftervon Ihering, 1903, pi. 3,figs. 11a, 11b.)

Eocene (lower Patagonian), north of Seco River and San Julian, Argentina.

B. Notosaria nigricans (Sowerby) 48

Figs. 7-17. 7-9, Respectively side,dorsal, andanterior views of acom- plete specimen showing commissure and folding,

X

^{I. hypotype}

U.S.N.M. 111018b. 10, The beakofthe preceding specimenenlarged,

X

^{3, to show apical plate, small disjunct deltidial plates, and large,}

incompleteforamen. 11, 12, Interior of pediclevalverespectivelytilted

andin fullview,

X

^{2,to showapical} plate, teeth, muscle scars, dental plates, deltidial plates, and numerous ^pallial sinuses, hypotype U.S.N.M. 111018a. 13, Posterior of same,

X

^{3, showing foramen,}

small disjunctdeltidial plates, andlarge teeth. 14, 15, Brachial valve infullandtiltedviewstoshow cardinalia, transversecardinal process, inconspicuous median ridge, muscle scars, and numerous pallial sinuses,

X

^{2, hypotype U.S.N.M. 111018a. 16, Posterior of same,}

X

^{4. showing cardinal process and curved crura.} 17,

Same

tilted to

show crura in side view,

X

^4-

Recent, Stewart Island,

New

Zealand.

yS SMITHSONIAN MISCELLANEOUS COLLECTIONS

VOL. I39 Plate ₇

Plicirhynchia and Aphelesia

Page

A. Plicirhynchiaplicigera (von Ihering) 52

Figs. i-ii. 1-3, Respectively anterior, side, anddorsal views of acom- plete specimen showing the long beak and anterior costation,

X

^J»

hypotype U.S.N.M. 549346a. _4, Exterior of the dorsal side of the same specimenshowingthe posterior obscure striationandthe strong anterior costation,

X

^{2. 5> Posteriorofthesamespecimen,}

X

^{4> show-}

ing the largeforamen, conjunct deltidial plates,andthe finestriae on the

umbo

ofthe brachial valve. 6, 7, Fullandtilted viewsof interior of a pedicle valve showing the deltidial plates and strong vertical dental plates,

X

^{2, hypotypeU.S.N.M. 549346b. 8, 9, Full and tilted}

views of a fragmentary brachial valve showing cardinal process and incomplete crura,

X

^{2, hypotype U.S.N.M. 549346c. 10, 11, Full and}

partial sideviewsofthe cardinalia of thesame^{brachialvalve} showing the radulifer crura,thicksocket plates,and cardinal process,

X

^4>

Eocene (Patagonian), Mazaredo, Patagonia, Argentina.

B. Aphelesiabipartita (Brocchi) 41

Figs. 12-22. 12-14, Respectively side, anterior, and dorsal views of a complete specimen showing small beak, small foramen, and anterior fold,

X

^{1, hypotype U.S.N.M. 549349a. 15, 16,} Interior of a pedicle valve in full view and tilted to show the small teeth, small dental plates, oval foramen, conjunct deltidial plates, and muscle field,

X

^2,

hypotype U.S.N.M. 549349b. 17, Posteriorof the samepedicle valve,

X

^{4, showing the oval foramen and conjunct deltidial plates. 18-20,}

Respectively partial side, anterior, and full views of the brachial valve belonging to the preceding specimen (pedicle valve),

X

^2»

showing the cardinalia. 21, 22, Respectively side andposterior views of another brachial valve,

X

^{3, showing the broad falcifer crura,}

hypotypeU.S.N.M. 549380.

Pliocene, Messina, Sicily.

Plate 8

Sphenarina, Aphelesia, and Eohcmithyris

A. Sphenarina sicida (Seguenza) 62

Figs. 1-7. 1-5, Respectivelydorsal, ventral, anterior, side, andposterior views of a complete and nearly perfect specimen,

X

^{ij showing tri-}

angular form, rectimarginate anterior commissure, and nearly erect beak, hypotype U.S.N.M. 173728. 6, The same specimen enlarged,

X

^{2. 7,} Interior of another specimen showing cardinalia,

X

^{10, with}

their long, slender, spinulifer crura, narrow outer hinge plates, and narrow,elevated socket ridges,hypotype U.S.N.M.549381a.

B. Eohemithyris? gettysburgensis Cooper, new species 33 Pliocene, Messina, Sicily.

Figs. 8-12. Respectively anterior, posterior, side, dorsal, and ventral views of a large and complete specimen,

X

h ^holotype U.S.N.M.

549382.

Miocene, on coast42 miles west ^of Gettysburg, Washington.

79

Page

C. Aphelesia bipartita (Brocchi) 41

Figs. 13-18. 13, Imperfect brachial valve showing falcifer cardinalia, lack of outerhinge plates, deeplyentrenched muscle scars, and short median ridge (myophragm) in full view,

X

^{3, hypotype U.S.N.M.}

549380a. 14, Sametilted slightlytoward the observerto demonstrate absence of outer hinge plates,

X

^{3- T5,}

^Same

^{in side view, showing}

the serrated edge and convex outer surface of the falciform crus,

X

^{4- 16,}

^Same

^{in side view,}

X

^{3, showing falcifercrura and socket.}

17,

Same

tilted to show posterior face of cardinalia with the short socket ridges, lack ofouter hinge plates and falcifer crura,

X

^{3- J8,}

Same

tilted to show cardinalia and serrated distal extremity of crus,

X3-

Pliocene, Messina, Sicily.

Plate 9 Grammetaria andAetheia

A. Grammetariabartschi (Dall) 58

Figs. 1-12. 1-4, Respectively dorsal, side, anterior, and posterior views of the holotype U.S.N.M. 239269,

X

^{i> showing the} rectimarginate commissure. 5, 6, Ventral and dorsal views of the holotype,

X

^2.

showingthe fine radial costellae. 7, Posteriorof the pedicle valve of the holotype showing the corrugated teeth, largeforamen, and auric- late but broken deltidial plates,

X

^{4- 8, Anterior view of the same}

pedicle valve showing the vertical dental plates,

X

^{2- 9, 10, Full and}

slightly tilted viewsof the interior of the brachial valve of the holo- type showing the cardinalia with their spinulifer crura,

X

^{2- n,}

Partial side view of the cardinalia of the preceding brachial valve showingthestrong socket ridge,corrugatedsocket,and short, slender spinulifer crura,

X

^{4- T2, Posterior view of the same, brachial inte-}

rior,

X

^{4, showing socket ridges,} small inner hinge plates, and plug closing apicalchamber.

Recent, U. S. Bureau of Fisheries Station 5621, off Jolo Island, Philippines; 298 fathoms, in Mollucca Pass off

Makyan

Island.

B. Aetheiagualteri (Morris) ₄₂

Figs. 13-22. 13-15, Respectively dorsal, side, and anterior views of a complete specimen,

X

^{1, hypotypeU.S.N.M. 89828a. 16, Dorsal view}

of the preceding specimen,

X

^{2- 17, Posterior of the preceding,}

X

^3.

showing the minute foramen and concave deltidial plates. 18, 19, Respectively full and anterior views of the pedicle valve interior of another specimen showing deeply impressed muscle field,

X

^{2» hypo-}

type U.S.N.M. 369298a. Note absence of dental plates. 20, Interior of an imperfect brachial valve, hypotype U.S.N.M. 89828b,

X

²»

21, Full view of the preceding specimen showing the thick socket ridges, corrugated sockets and thick coalesced inner hinge plates, and long falcifer crura,

X

^{4- 22,}

^Same

^{as preceding,}

X

^{4, but tilted}

to show the slender bladelike falcifer crura, socket ridge, and corru- gated socket.

Miocene (Duntroongreensand), 1 mile northof Kakanui, northof Otago,

New

Zealand.

80 SMITHSONIAN MISCELLANEOUS COLLECTIONS

VOL. 139